I'm really pleased to see you posting Rummel's list, as these genocides are something every human being alive should know about, but Hollywood won't touch most of them. However, I must object to your categorizing all of these murderous governments as "leftist"--while they were all collectivist/statist, some were in opposition to communism. The left-right dichotomy is a false one. By the way, I will never cede socialists the label "liberal", but let them have the absurd "progressive".

You may find useful my Death by Government list at Amazon.com based on the chapters of Rummel's book:http://www.amazon.com/gp/richpub/listmania/fullview/1DR37D5NREJUG/